From d4522b8e9854178473adcea0fbb84f23f6e744bd Mon Sep 17 00:00:00 2001 From: Felipe Boeira Date: Tue, 8 Jan 2019 18:39:03 +0100 Subject: Initial commit --- src/examples/cat.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/examples/cat.c (limited to 'src/examples/cat.c') diff --git a/src/examples/cat.c b/src/examples/cat.c new file mode 100644 index 0000000..c8d229d --- /dev/null +++ b/src/examples/cat.c @@ -0,0 +1,34 @@ +/* cat.c + + Prints files specified on command line to the console. */ + +#include +#include + +int +main (int argc, char *argv[]) +{ + bool success = true; + int i; + + for (i = 1; i < argc; i++) + { + int fd = open (argv[i]); + if (fd < 0) + { + printf ("%s: open failed\n", argv[i]); + success = false; + continue; + } + for (;;) + { + char buffer[1024]; + int bytes_read = read (fd, buffer, sizeof buffer); + if (bytes_read == 0) + break; + write (STDOUT_FILENO, buffer, bytes_read); + } + close (fd); + } + return success ? EXIT_SUCCESS : EXIT_FAILURE; +} -- cgit v1.2.1